Means for cooling hot bodies.



. PATENTED OCT. 16, 1906.

RsAG R. MEANS FOR 000mm HOT BODIES.

APPLIOATION FILED JUNE 14. 1905.

Inventor:

- UNITE STATES."

PATENT oFsroEl REDERIC SAGER, OF ROCHESTER, NEW YORK, ASSIGNOR TO JAMES'H. SAGER, OF ROCHESTER, NEW YORK.

MEANS FOR COOLING HOT BO Dl ES.

.Bodies, which improvement is fully set forth in the following. specification and shown in the accompanying drawings.

My inventlon is an improved means for conveniently and rapidly cooling heated bodies, as of metal, by increased or stimulated radiation, the invention being designed as an improvement on the device shown and set forth in Letters Patent No. 775,860, of date November 22, 1904.

It is well known and-understood that heat will more rapidly radiate and become dissi-- pated from surfaces or bodies through agencies, as projecting parts, having amp e spaces or opemngs through which currents of air.

may freely. circulate.- With this fact in view I have aimed. in my present invention to produce radiating devices having not only road radiating surfaces, but also ample airspaces through which currents of air may readily flow to convey away the outflowing heat.

- Another-object of my invention is to provide improved and better means for securing the radiating devices or radiators to the body to be-cooled.

Other objects and advantages of the invention will be brought out and made to appear in the following description and the struc-- turc. more articularly pointed out in the appended c aims, reference being had to the accompanying drawings, which, with -the reference characters marked thereon, form a part of-this specification.

Figure '1 is aside elevation of a radiating element with a tool k shown by dotted lines.

Fi 2 is an elevation'of the same seen as in icated by arrow in Fig. 1, a part being broken away and sectioned. Fig. 3 is a view of the outer end of the radiatin .element indicated by arrow 3 in Fig. 2. ig. 4 is a view of .the inner end of the radiating element indicated by arrow 4 in Fig. 2. Figs.

5, and 6 show, respectively, the end and the side of a holding divided ring. Fig.7 shows a ball used with the ring. vFig. 8 shows;

the application of the radiating elements to a convezisurface. Fig. 9 shows the radiating element applied. to a flat surface. Figs. 10

I Specification of Letters Patent. Application filed June 14,1905. swarm. 265,299.

Patented Qct. 16, 1906.

and 11 show, res ectively, a side elevation and an end view 0 a slight modification in the form of the ,device.

ig. 12 shows a spiral form of the radiating element. plan of .a part of a plane or straight plate indented to receive the radiating elements in.

rows, said radiating elements being re re- Fig. 13 is asented by dotted lines and. several of t emv sectioned at thesurface of the plate. Fig.

14 shows a sheet-metal blank out of which to form a radiating element. Fig. 8 is drawn to a scale smaller than that of the other figures.

In the drawings, A represents the radiating device in its preferred form, it consisting of a single piece of sheet-metal, as copper, made primarily from a blank B, substantially as shown in Fig.14. This metal blank is rectangular in form and centrally divided through its longer dimension by a kerf a, reaching from one end nearly, to the op osite end, the two parts I) b at the sides of t e kerf being transversely crimped or corrugated to form the radiatin wings or portions CC, Figs. 1 and 2. The orizontal narrow strip or portion (1 uncut :and at the end of the kerf a, is bent to form the cylindrical portion'e of the radiating element, which bending of said part brings the corru ated portions 0 c opposite each other, as s own, with an am 1e air-spacef between. These radiatin e ements are produced in .quantities' an designed tobe attached'side by side to the bodytobe cooled, the radiating elements when in place projecting at right angles from the surface. wThe to be cooled, this being accomplished for each radiating element by meansof .a split ring g, Figs. 5 and 6, and ball h, Fig. 7} the diameter of the ball bein' slightly larger than the inner diameter of t e ring. to receive the radiatingelements is first formed with a series of circular cavities or indentations 6., Figs. 8, 9, and 13, referably The body with conical bottoms, as shown, t e diame ters of the cavities being such as to freely the radiating elements A. I Previous toinserting a radiating element into a cavity it is' loaded or supplied with a ring and ball, as shown in Figs. 2 and 3, the ball at this stage of the operation simply resting upon the upper end of the rin All parts being in place, a single stroke 0 a hammer upon the end' of a rod is, Fig. 15, placed in the radiating element and against the ball, as shown by dotted lines in Fig, 1, will drive the ball into the ring and expand the latter and the part e, causing said part to firmly press the inner circular wall of the cavity '5, and so hold the radiating element firmly to place. The end of the part 6 of the radiating element rests against the conical bottom of the cavity, and when the ball is driven home to place, as stated, it also rests against the said conical bottom, as appears in Fig. 9, the center of the ball being substantially in the middle plane of the ring and below the surface of the plate or body. The tool 7: is of steel with its inner end preferably slightly hollowed to better fit the convex surface of the ball, the rod being inserted between the wings c c in a manner to be coaxial .with the radiating element.

In the form shown in Figs. 10 and 11 the original blank metal sheet from which a 'raidating element is made is a long narrow strip with a perforation l at the middle. This blank strip is one-half the width of the blank B and twice the length. and without the kerf, the corru ations bein formed at the middle part of the strip equa ly on either side of the central opening I, the two ends of the strip being bent to semicylindrical forms and together constituting the cylindrical portion m for receiving the split ring'and ball and to be inserted into a cavity i of the body,

as in the case of the form of radiating elemeat first described.

In the form shown in Fig. 12 a strip or ribbon of metal is, wound in spiral form upon a mandrel of uniform diameter, this Spiral body E beingof indefinite-length, and to subsequently cross cut into radiating-element lengths The diameter'o'f the spiral body is not essential, it be' shown as equal with the cylindrical parts e m of the other forms of radiating element and to fit the cavities i and to beset to lace in the body to be cooled by means 0 the divided ring and ball as in the other cases. The order of attaching these ra'diating elements to the body to be cooled or their relative arrangement thereon is merely amatter of judgment or convenience and constitutes no part of my present invenplace the radiating elements in vertical rows with the corrugated sides 0 0 vertical and the openings f one directly over another, so that,

ascending currents of air may readily traverse all the spaces f, and so rapidly convey away the heat-waves emitted by the radiating sides or win s. c c, or if the surface provided with the radiatin elements be horizontal it may be desirab e in some cases to alternate the axial positions of the radiators, so that varying horizontal currents of air may readily find way through the differentlypositioned arts.

What I c aim as my invention, and desire to secure by Letters Patent, is.

1. A hollow radiating element for attaching to a larger body, having a radiating portion and a cylindrical portion, a larger body having an indentation for receiving said cylindrical portion, and a ring in said cylin-' drical portion, and a part coacting with the ring to spread the latter. Y

2. A hollow radiating element for attacking to a larger body, having a radiating portion and a cylindrical portion, a larger body having an indentation for receiving said cylindrical portion, and a ring divided at one slde in said cylindrical portion, and a ball to enter said ring, the diameter of the ball being greater than the internal diameter of the rm I h witness whereof I have hereunto set my hand, this 12th day of June, 1905, in the presence of two subscribing witnesses.

I FREDERICK SAGER.

Witnesses:

' Enos B. WHITMORE, ADA M. WHITMORE. 

